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1932 Cadillac V16 scale model

Started by Roger Zimmermann, July 12, 2019, 01:40:19 PM

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Roger Zimmermann

Thanks Gary! During wintertime, the updates will be more often. Right now, I'm playing with my "new" car, a '72 CdV.
The begin of the Continental? It's a long time ago!
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

#21
The rear part of the hub for the six wheels is done. To help to understand what I'm trying to replicate, I'm adding a picture from a real wheel. Now, I will begin to machine the hub's front.
To facilitate the manufacturing, I'm doing on each part the same group of operations. I just hope that I will not have bad surprises!

5 Carving the hub.jpgDSC01455.JPGIMG_0844.jpg
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Mike Josephic CLC #3877

Hello Roger!

I recalled that you once told me you made models.  I
had no idea that you were making 1:12 models from
scratch!  I looked through the pictures of the Lincoln.

Your work is truly outstanding.  I can see why it takes
about 10 years to complete one of these.  Such detail
in a model I've never seen before.  You have a very high
level of patience.

I'm looking forward to following your work on the V-16
chassis.

Best regards,

Mike
1955 Cadillac Eldorado
1973 Cadillac Eldorado
1995 Cadillac Seville
2004 Escalade
1997 GMC Suburban 4X4, 454 engine, 3/4 ton
custom built by Santa Fe in Evansville, IN
2011 Buick Lucerne CX
-------------------------------------
CLCMRC Museum Benefactor #38
Past: VP International Affiliates, Museum Board Director, President / Director Pittsburgh Region

Lexi

Roger your work and that story about the building of the '56 Lincoln still blows me away.  Not much surprises me anymore but that did and still does! Great, great work. Keep us posted. Clay/Lexi

Roger Zimmermann

Thanks for the comments! Mike, I'm not surprised that you were not aware that I did the models from scratch. Who is doing that nowadays?
When I began the Mark II, I wrote also about that "Lincoln". I was quickly corrected because for a shot period of time, Continental was a stand alone brand. Sure, engine and transmission were pure Lincoln, as well as the front suspension.
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

Sometimes it's good to wait to perform some task. While the drums were in work, I wanted to do the 8 (!) holes per wheel for the studs. I'm now glad I did them not.
While I began to machine the first wheel hub at the front, I had to modify some dimensions. With the calculated bolt circle, it would have been very difficult to "torque" the nuts because they would be very near from the hub's outer diameter. Therefore, I reduced a tad the bold circle and, instead of the 1.2 mm studs, I will use smaller ones: 1 mm. With eight per wheel, the risk to loose a wheel is reduced!
I also enlarged the aperture for the hub cap by 1 mm to have a better access to the wheel nuts.
If you are looking at the attached picture and older ones, you will notice that I'm using now a 4-jaws chuck. I had to do the change because with the original one (which is well worn), I could not have a piece turning true.
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

#26
The wheel hubs were machined inside; to work the outside, I had to make a special tool. The hubs will be attached with the studs to the tool and then the work at the outside will be possible. This may be abstract for the moment; you will understand when I can show the process. The first picture is the tool almost ready.
On that picture, you can see that I'm machining a cone. I suppose that the wire wheels were rather flexible and unstable; the hub with the bearings has the same cone (not so wide) and the wheel hub is resting on that cone to enhance the stability. I attempted to reproduce this characteristic, however, for the usage of the model, this extra work is more a futility than a real need. 

As I had to do the threaded holes into te tool, I used the opportunity to use the setting of the drilling machine to drill the needed holes into the drums and wheel hubs. There were a lot of holes: 6 wheel hubs @ 8 holes, 4 drums @ 8 holes and the special tool also with 8 holes!
The reduced bolt circle is exactly what I expected; I will have room into the wheel hubs to "torque" the nuts attaching the wheels.
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

Still using the lathe...I'm adding the picture showing the drum's drilling. When this was done, I began to machine the wheel hubs. Now, you can see for what the special tool is used; the lathe was not turning when I took the picture because the tool must be hold with both hands. The last picture is showing an almost finished wheel hub. Why "almost"? Because there are 40 holes for the spokes which must be drilled.
I began each wheel hub using a bit of brass weighting 80 grams. The finished part has a weight of 6 grams! I cannot say that it's very economical!
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

INTMD8

As always, amazing work!  Thanks for posting  ;D

Roger Zimmermann

You are welcome Jim! It seems that you like what I'm doing!
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

The Tassie Devil(le)

Quote from: Roger Zimmermann on October 25, 2019, 07:36:26 AM
I began each wheel hub using a bit of brass weighting 80 grams. The finished part has a weight of 6 grams! I cannot say that it's very economical! 
There has to be a way of collecting the shavings/millings and recycling?

Could be a good project for a later day?

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Roger Zimmermann

Maybe. But you probably know Bruce, that the wheels/tires construction in a scale model is what is creating the most waste, at least the way I'm doing them. This is way different for the other parts. Many years ago, I saved as much waste as possible to recycle it. Finally I stayed sitting with my brass and throw it away.
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

After I finished the wheel hubs, I saw that I did a mistake at the drums. When the wheel is installed on the drum, the wheel hub is going into a recess from the drum, with a small gap between hub and drum. The gap I had was way out of line. What to do? redo again 4 drums? No. I cut a band of brass, shaped it like a ring and soldered on the drum. On the attached picture, the joint can be seen; once paint will be applied, this misshapen will not be seen. The fin is on the right, ready to be soldered.
I milled 8 slots into the drum to help for the location of the reinforcement fins. I realized then that those fins are very small and difficult to held for soldering. Therefore, for the next parts, I did the fins much longer and milled a fracture groove. The tail is a help to handle the part during doing it and to held the fins during soldering. Once soldered, the tail can be broken away. I now have just 30 to do!
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

The drums are now ready; I had almost more time to do the fins and solder them to the drums as turning the drums themselves (but with lass waste!). The hubs are now attached to the drums; it will allow me to continue the details on the hubs; an original one can be seen on post #18.
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

The Tassie Devil(le)

'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

Glen

Quote from: The Tassie Devil(le) on November 02, 2019, 07:03:22 PM
True craftsmanship.

Bruce. >:D

I agree.  I can use a lathe, but this is way beyond my skill set.  Excellent work. 
Glen Houlton CLC #727 
CLCMRC benefactor #104

Roger Zimmermann

1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

If November is the season's end for old cars driving, it's now the good season for modelling! The original hubs are made with cast iron; as I cannot cast parts, I have to machine them to try to give the same aspect; this is what I began. The first picture is showing the hub in work with a dentist mill. The second picture is showing a finished hub. Indeed, I could spare this work because once the wheel is installed, the hub cannot be seen!
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Roger Zimmermann

With the drums, hubs and wheel hubs ready, the logical continuation is the rims. By accident, I discovered  that the original wheel I had during my stay in Germany was most probably from a V-12 car (18" for the V-16 and 17" for the V-12). By making comparisons with the excellent drawing in the shop manual, I saw that the proportions are not right. Further, by substracting from the nominal wheel diameter the exterior rim diameter, I came to an absurd thickness for the sheetmetal. Suddenly, my wheels have an increased diameter of 2mm (a difference of 1" is giving 2 mm at this scale)! By chance, I did the verification before all was finished!
This discrepancy is explaining why I had a too large pocket diameter at the drum: the wheel hubs are also different! No, I will not do 6 new wheel hubs, nobody will notice that error.
In my material, I found a "tube" made with brass. I will have to take away some material (the tube has a weight of 1.1kg); I had to close one end to be able to reduce the outside diameter. This is what you can see on the first picture.
That huge piece of brass is totally disproportioned compared to the lathe!
If you are good looking at the last picture, you can see metal chips near the cutting tool: this small machine has an automatic advance which I very seldom use; after I cleaned the old grease, I could let it do the work. Between each cut, I must let cool the machine...
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

The Tassie Devil(le)

Quote from: Roger Zimmermann on November 06, 2019, 11:39:09 AM
This discrepancy is explaining why I had a too large pocket diameter at the drum: the wheel hubs are also different! No, I will not do 6 new wheel hubs, nobody will notice that error. 
We will.   But, will forgive you.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe